QUESTIONS AND ANSWERS GRADED A +
2025/2026
Tests of Big book (biology)
CHAPTER 1
1- The mechanism by which organisms maintain the stability of internal
environment is known as:
A- Homeostasis *
B- Normal health
C- Structural adaptation
D- Osmoregulation
E- Blood circulation
2- The ability to move is an example of:
A- Homeostasis
B- Reproduction
C- Growth and development
D- Adaptation
E- Response to stimuli*
3- The amount of sugar in our blood is always maintained 3.2 - 6.1 mmol/l. It is an
example of:
A- Homeostasis*
B- Reproduction
C- Growth and development
D- Adaptation
E- Response to stimuli
4- The next higher level of biological organization above the organism is:
A- Molecular genetic
B- Cellular
C- Population-species*
D- Ecosystem
E- Biosphere
5- What level of organization is studied by epidemiology and parasitology?
A- Molecular genetic
B- Cellular
C- Population-species
D- Ecosystem*
E- Biosphere
6- One of the lipid function is:
A- Provide different kinds of movements
,B- Store large amount of energy over long period of time*
C- Contain genetic information
,D- Provide lubrication
7- Which of the following is a major element found in cell:
A- Copper
B- Zinc
C- Sulfur*
D- Iodine
E- Fluorine
8- Which of the following is a minor element found in cell:
A- Oxygen
B- Carbon
C- Sulfur
D- Zinc*
E- Sodium
9- The most prevalent compound in a living cell:
A- Protein
B- Nucleic acid
C- Water*
D- Lipid
E- polysaccharide
10- The largest biomolecule in a living cell:
A- Glycogen
B- Protein
C- Cholesterol
D- Deoxyribonucleic acid*
E- Triglyceride
11- Amino acid is a structural component of:
A- Nucleic acid
B- Protein*
C- Sucrose
D- Starch
E- Fat
CHAPTER 2
1- The virus capsid is composed of:
A- DNA
B- RNA
C- Proteins*
D- Both DNA & RNA
E- None
2- Disease(s) caused by viruses:
, A- Influenza
B- Rubella
C- Polio
D- Ebola
E- All are correct*
3- Viroid consist of:
A- Protein
B- DNA
C- RNA*
D- Peptidoglycan
E- Lipid
4- Prion is a molecule of:
A- Protein*
B- DNA
C- RNA
D- Peptidoglycan
E- Lipid
5- Example of prion disease is:
A- Creutzfeldt-Jakob disease
B- Fatal familial insomnia
C- Kuru
D- Scrapie
E- All are correct*
6- Viruses range in size from:
A- 1-100 nm
B- 20-300 nm*
C- 10-100 micrometer
D- 400-1000 nm
E- 1-10 micrometer
7- A fully formed infectious viral particle is called:
A- Viroid
B- Virusoid
C- Virion*
D- Capsid
E- Prion
8- Which of the following statements applies to viruses?
A- They can be observed using a light microscope
B- They can multiply outside the host cells
C- Release of a virus from its host cell is always associated with lysis of the cell
D- Viruses are complexes of nucleic acid and proteins*